Application of 139756-21-1, Adding some certain compound to certain chemical reactions, such as: 139756-21-1, name is 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one,molecular formula is C17H20N4O2, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 139756-21-1.
To the chlorosulphonic acid (3.0mL, 36.58mmol) was added 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (1g, 2.4mmol) while maintaining the temperature 0C, then reaction was allowed to proceed at 0-5C until TLC analysis indicated the absence of starting material. After completion, to the reaction mixture, cold CHCl3 was added and to it ice was added in portions. Organic layer was separated and re-extracted the water layer with 2×100mL cold CHCl3 and the combined organic layer are washed with brine solution, concentrated under vacuum; Yield 75%.
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 139756-21-1, 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one, other downstream synthetic routes, hurry up and to see.
Reference:
Article; Reddy, G. Lakshma; Dar, Mohd. Ishaq; Hudwekar, Abhinandan D.; Mahajan, Priya; Nargotra, Amit; Baba, Adil Manzoor; Nandi, Utpal; Wazir, Priya; Singh, Gurdarshan; Vishwakarma, Ram A.; Syed, Sajad Hussain; Sawant, Sanghapal D.; Bioorganic Chemistry; vol. 89; (2019);,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia